Automatic firearm



Oct. 17, 1933. H, 'SCHMEISSER AUTOMATIC FIREARM Filed March 5, 1932 Fatenfecl Get. 17, e r

. um rsn srarss. PATENT, or ies V AU'roMa'rro 'FHREARM fiiugo lschmeisser, Sulil, Germany 7 Application Maren 5,1932, Serial No. 59mm in G ermany March 9, 1931 t '5 Claims;

My invention relates generally automatic firearm and more; particularly to "that class of automatic firearms in which the barrellis adapted to slide lengthwise and 'a closing spring is ac commodated inthe neck of the stock,

The chief object of my invention isto provide a firing and safetymechanisrn in connection with a cartridge-delivering mechanism, which will be simple and compact in construction, efficient and i0 reliable in operation and practicalfrom both the stand-point of the manufacturer and the standpoint of the user.g 1: Q The automatic guns for hunting and shooting purposes with a reciprocating barreliand rigid looking as hitherto known in the tra de are ohjectionable more-or less for the reasonthat thef firing and cartridge deliverylever mechanisin is actuated by meansof; fiat springs or doubleshanked bow-springs 1 which are very 'liable to fracture so that in case of fracture the guncannot beused and requires repair. v y v 7, Guns of this type as hitherto constructed are alsoobjectionable for the reason, that the jsafety. is provided ata least practical or handyplace imaginableand a deviceindicating whether; or not the gun is cooked, ashusually ordinaryguns for hunting and shooting purposes, is not at all provided therein. g,

. I shall now proceed to describef more detail the improve'mentsprovided and advantages real-f ized. according to ,the present invention, .withreference to theaccompany drawing, the; said improvements not onlyovercoming all disadvan tages-hitherto encounteredflina firearm of this class, as" above intimated,- but aIS cQntr-ibuting to a more simple construction and less expensive manufacture than firearms of likegeneral nature. In particular these advantages are securedby the provision of a pin carrying the hammer, spring and pivotally connected, with the. hammer and which, when the hammer is cockedywillgprojeetl fromthe trigger guard to constitute ameans for visibly indicating, that the hammer is in cocked position and the firearm ready for fitting, thehammer in turn being held in cocked position byan upwardly extending hook-shaped front arm of the trigger member provided with an elongated, horizontal rear arm or trailing extension adapted to c'o-ract with a safety member mounted in the: usual manner in the neck of the stock, and with a spring-controlled oscillating lever adapted to act on arresting surfaces of the cartridge deliv- I, ering member or lever.q

' It will be seen that when the saidrear arm 5 'of: the trigger members co-operates withv the safety member. pushed rearwardly into safe position, the rear arm will be locked and consequently the trigger lwill also be locked against operation. Again, the provision of the improved hammer spring and safety mechanism involves the advantage of gaining sufficient room for the accommodation of a solid oscillating lever in lieu of the, locking the cartridge delivery lever in the-one (upper)- or the other (lower) of its two positions. I t l l V In the accompanying drawing forming apart of this specification, and showing for purposes ofexemplification, a'preferred form and man ner in which the invention may be embodied and-practised, 1 a r Figure'lis a fragmentary view, in elevation, partlyinsection, of ahfirearrn constructed according to the-present invention, the safety mechanism being shown in safe position and the outer casing being indicated only bya contour line; :Figure 2 is a sim arminits uncooked and unsafe condition and the: cartridge delivery lever in, its fixed or ar-j rested position with the free-lever end in slightly v downward depending direction.

The trigger guard 2 is', firmly attache d to the lower side or bottom of-the breech casingl. i In ilar View showing the fire- 7 'pable-of pivotal movement "thereon. -The rear face of the hammer is enlarged to form a lug for pivotal connection with a pinf5 partially housed in a, bore of the trigger guard a nd surrounded by a coiled spring 6 Wound abjoutthe lpin 5 and partially accommodated-1n the said bore together, with the=-pin." It will'be [seen that .theup'pers-partbr. end ofgtheibore. isa-widened toaff ord the-necessary. room for both the spring and the pin; tormove therein-v .without any undue frictional contact with thewall ;cf;;the bore,

' tion of the firearm.- Itjwill be seen that thus the pin 5 forms a m ost reliable means of indicatiOIl.

The trigger body 'Z is elongated at the rear,

slide 8 is put fs afe, as shown in Figure 1, the

inner nose thereof will overlie the hook-shaped extremity of the trailing lever arm 7a so as to look the trigger.

7 The safety slide 8 may be of conventional construction. I prefer, however, to form the same of two parts which when assembled to embrace the tang 1a of the casing 1, constitute a unit'adapted to be manually displaced on the tang a short way in bothdirections, as usually with safety devices of this class,

for locking the fire-arm to safe condition and releasing the same to firing condition, respectively. i By discarding the usual large flat hammer spring and substituting therefore aless' cumbersome coiled spring I have gained ample room for the accommodation of an oscillating lever 9 pivoted at one end to the casing or any other suitable stationary part, and provided at its other or free end, with two oblique; surfaces 10a and 10b for engagement with'correspond- 'ing facesof the short or rear arm of the'cartridge delivering lever 11. The lever '9 (is controlled by'a coiled spring 10 andit will be seen in Figure 2, that the leverfaces 10a and 1% are adapted to contact withthe corresponding faces of the short arm of the lever 11, that is to say, the face 10a will engage the one face all of the details of the construction the firearm'because they, will be self-suggesting to the man of the art and'experts in firearms of this type will be able to supply all such details T'in their correct design, proper in their size and A relationship, properly mounted and supported according to the tenets of firearm construction. Nor does it seem necessary to burden this specification with an exposition of the advantages which the inventio'npossesses, for they will be apparent to those skilled in the art to which this inventionf'pertains. 7 Itis also apparent that in carrying out my invention some changes from the construction herein shown" and described may be made. I

' would, therefore, have it understood, that I do not limit myself thereto, but hold myself at liberty, to make such departures therefrom asfairly 'fall within the scope and spirit of myv invention, m

What-I claim is:' v Lina-firearm of the character referred to herein, the combination with a firing mechanism and a cartridge delivering member, 'of an indicating pin, a coiled spring wound about said pin, a bore in the, trigger guard for the reception of said pin and spring,- a hammer pivotally connected to said pin, a safety of the sliding type, and a trigger member adapted to immediately catch the hammer and hold the same in cocked position againstthe resistance of said spring, the rear end of the said trigger member being enlarged to form an arm for co-operation with the safety.

2. In a firearm of the character referred to herein,'the combination with a firing mechanism and a. cartridge delivering member, of an indicating pin, a coiled spring wound about said pin, a bore in the trigger guard for the reception of said pin and spring, a'hamlmerv pivotally connected with said pin, a safety of the sliding type,

a trigger member adapted to immediately catch and'acartridge delivering member, an indicating pin, a coiled spring wound about said pin, a bore'in the trigger guard for the accommodation of the said pin and spring,-a hammer pivotally attached to said pin, a spring-controlled lever adapted to lock the said cartridge delivering member in one or theother of two positions, and a trailing arm for cooperation with the said spring-controlled lever. 7 4."In a firearm of the character referred to herein, the combination with a firing mechanism and a cartridge delivering member, of an indicating pin, a coiled spring wound about said pin, a hammer pivotally connected with said pin, a safety member, a trigger member adapted to immediately catch the hammer and hold the same in cocked position against the action of the said spring, and a spring-controlled lever adapted to lock the said cartridge delivering member in one or the other of two positions, the rear end of the trigger body being extended to form an arm for co -operation with. the. said safety member and the said spring-controlled lever.

5. In a firearm of the character referred to herein, the'combination-with afiringmechanism ,two'positions, the rear end of the trigger body being extended to form an' arm for co-operation with the said safety member and the said springcontrolled lever. I

HUGO SCHMEISSER.

iso 

